Okay, not a whole lot of solid info in response, so here's mine. You *need*
That covers your N, P, K, and Trace needs. You can use K2SO4 just to make sure you've got enough K, or GH Booster for K, which also has some trace hardeners - Ca, Mn, and Mg.
At a minimum, you need the first 3 ferts at an approximate 4:1:1 ratio. If you add K2SO4, it's another :1, and if you add GH Booster instead, I'd suggest :1 or so. If you choose to add extra iron (completely optional), I'd go with :.5 on top of everything else.
All of this assumes 3x per week dosing with 50% weekly water changes.
Google EI dosing for more info, or look at the dosing thread in the ferts forum.